CT Housfield Units and Windowing
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- čas přidán 22. 08. 2021
- 0:10 Image Production, Reconstruction
0:33 Linear Attenuation Coefficient
1:45 Back Projection
2:02 CT Numbers, Hounsfield Units
2:49 Calculating CT Numbers
3:37 Windowing
4:08 Window Width
6:09 Window Level
6:54 Combining Window Width and Window Level
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Thank u sir. U are a life saver. U made the concept easier to understand.
Solid. Thanks for the video! Very helpful as I read a chapter on head and neck CT imaging!
Please have a look at 1:16 [min:sec]. When there is material with an attenuation coefficient larger than 1, then the attenuation would be more than 100%.
The transmission is actually exp(-µd). With µ=0.181/cm the attenuation would be ~16.5%.
Thanks for sharing, very nice explanation
Clear explanation.👌
Very good explanation
Very nice explanation
Thank you
U should go step by step with bone and lung... especially when writing out number line
Great video. Who assigns the the WW and L? Is it the same for all vendors/machines?
I'm still confused... ugh and I plan on taking my registry soon
Good luck with your registry! In my opinion this is one of the trickiest concepts to grasp. It's something you will get a good grasp on as you work more with both CT and general xray.
did you take it yet?